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CN120717736A - Calcium silicate decorative board and preparation method thereof - Google Patents

Calcium silicate decorative board and preparation method thereof

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Publication number
CN120717736A
CN120717736A CN202510676398.9A CN202510676398A CN120717736A CN 120717736 A CN120717736 A CN 120717736A CN 202510676398 A CN202510676398 A CN 202510676398A CN 120717736 A CN120717736 A CN 120717736A
Authority
CN
China
Prior art keywords
parts
calcium silicate
powder
steam curing
silicate decorative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202510676398.9A
Other languages
Chinese (zh)
Inventor
李国英
杨稳松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Langfang Juyuan New Building Materials Co ltd
Original Assignee
Langfang Juyuan New Building Materials Co ltd
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Filing date
Publication date
Application filed by Langfang Juyuan New Building Materials Co ltd filed Critical Langfang Juyuan New Building Materials Co ltd
Priority to CN202510676398.9A priority Critical patent/CN120717736A/en
Publication of CN120717736A publication Critical patent/CN120717736A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/041—Aluminium silicates other than clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/042—Magnesium silicates, e.g. talc, sepiolite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/46—Rock wool ; Ceramic or silicate fibres
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/10—Acids or salts thereof containing carbon in the anion, e.g. carbonates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Botany (AREA)
  • Environmental & Geological Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

本发明公开了一种硅酸钙装饰板及其制备方法。由如下重量份数的原料组分制成：硅质材料20‑30份、钙质材料40‑80份、增强纤维5‑10份、矿粉6‑12份、颜料3‑5份、添加剂3‑10份、水100‑300份。本发明的硅酸钙装饰板，组分中加入香蕉纤维和水镁石纤维，增强了材料的抗冲击性能，加入蛇纹石粉和蓝晶石粉增强了材料的抗压强度，加入碳酸锂和海泡石粉，增强了材料的抗热收缩性能，延长其使用寿命。The present invention discloses a calcium silicate decorative board and its preparation method. The board is made from the following raw material components by weight: 20-30 parts siliceous material, 40-80 parts calcareous material, 5-10 parts reinforcing fiber, 6-12 parts mineral powder, 3-5 parts pigment, 3-10 parts additive, and 100-300 parts water. The calcium silicate decorative board of the present invention includes banana fiber and brucite fiber to enhance its impact resistance, serpentine powder and kyanite powder to increase its compressive strength, and lithium carbonate and sepiolite powder to enhance its thermal shrinkage resistance, thereby extending its service life.

Description

Calcium silicate decorative plate and preparation method thereof
Technical Field
The invention belongs to the technical field of building material preparation, and particularly relates to a calcium silicate decorative plate and a preparation method thereof.
Background
The calcium silicate decorative board is a building decorative board made of siliceous and calcareous materials as main raw materials, has the characteristics of fire resistance, moisture resistance, durability and the like, and is widely applied to the fields of buildings, ships, furniture and the like. The main raw materials and the functions of the cement-lime composite material are siliceous materials such as quartz sand, fly ash and diatomite (providing silicon dioxide), calcareous materials such as cement and lime (providing calcium oxide), reinforcing fibers such as wood fibers, mineral fibers or cellulose fibers (improving strength), and additives such as light aggregate (such as perlite) which can be added to reduce the density.
The calcium silicate board has excellent fireproof performance, i.e. non-inflammable material (class A fireproof), high temperature resistance (up to 1000 ℃ or more) and no toxic gas release when meeting fire. Has good moisture resistance and mildew resistance, and is suitable for humid environments (such as bathrooms and kitchens). Light and environment-friendly, low density (usually 0.8-1.6g/cm 3), easy cutting and installation, and no harmful substances such as asbestos, formaldehyde and the like. Corrosion resistance and aging resistance.
Although calcium silicate boards have many advantages (such as fire protection, moisture protection, light weight, etc.), they have some drawbacks and limitations, such as high brittleness, easy cracking, poor impact resistance, easy edge chipping during handling or installation, and possible cracking under external impact (such as drilling, nailing). The calcium silicate board has high hardness but insufficient toughness, and the fiber reinforcement effect is limited. The thickness stability is poor, and part of low-quality boards can slightly expand and deform in a humid environment, so that the thermal shrinkage resistance is poor.
Disclosure of Invention
The invention aims to provide a calcium silicate decorative plate and a preparation method thereof.
A decorative calcium silicate board is prepared from (by weight portions) siliceous material 20-30, calcareous material 40-80, reinforcing fiber 5-10, mineral powder 6-12, pigment 3-5, additive 3-10, and water 100-300.
The siliceous material is one or a combination of more of quartz sand, fly ash, diatomite, zeolite, kaolin and spherical silica micropowder.
The calcareous material is one or a combination of a plurality of lime, cement, sericite powder and carbide mud.
The reinforcing fiber is a mixture of banana fiber and brucite fiber according to a mass ratio of 2:1.
The mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1.
The additive is a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The pigment is one or more of iron oxide yellow, iron oxide red, iron oxide black, titanium pigment, phthalocyanine blue, ultramarine blue, lithopone and carbon black.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, mineral powder, pigment and additive, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product.
The temperature of the pre-culture is 35-55 ℃ and the pre-culture time is 6-12h.
The temperature of the steam curing is 120-220 ℃, the steam curing pressure is 1-3MPa, and the steam curing time is 12-16h.
The calcium silicate decorative plate has the beneficial effects that the banana fiber and the brucite fiber are added into the components, so that the shock resistance of the material is enhanced, the serpentine powder and the kyanite powder are added to enhance the compressive strength of the material, and the lithium carbonate and the sepiolite powder are added to enhance the heat shrinkage resistance of the material and prolong the service life of the material.
Detailed Description
The present invention will be described more fully hereinafter in order to facilitate an understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
The calcium silicate decorative plate is prepared from the following raw materials, by weight, 25 parts of quartz sand, 60 parts of cement, 8 parts of reinforcing fibers, 9 parts of mineral powder, 4 parts of iron oxide yellow, 8 parts of additives and 200 parts of water, wherein the reinforcing fibers are a mixture of banana fibers and brucite fibers according to a mass ratio of 2:1, the mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1, and the additives are a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, mineral powder, iron oxide yellow and additive, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 45 ℃, the pre-curing time is 8 hours, the temperature of the steam curing is 180 ℃, the steam curing pressure is 2MPa, and the steam curing time is 14 hours.
Example 2
The calcium silicate decorative plate is prepared from the following raw materials, by weight, 20 parts of spherical silica micropowder, 45 parts of lime, 5 parts of reinforcing fibers, 6 parts of mineral powder, 3 parts of iron oxide red, 4 parts of additives and 120 parts of water, wherein the reinforcing fibers are a mixture of banana fibers and brucite fibers according to a mass ratio of 2:1, the mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1, and the additives are a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, mineral powder, iron oxide red and additive, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 38 ℃, the pre-curing time is 6 hours, the temperature of the steam curing is 120 ℃, the steam curing pressure is 1MPa, and the steam curing time is 16 hours.
Example 3
The calcium silicate decorative plate is prepared from the following raw materials, by weight, 30 parts of diatomite, 80 parts of sericite powder, 10 parts of reinforcing fibers, 12 parts of mineral powder, 5 parts of titanium dioxide, 10 parts of additives and 300 parts of water, wherein the reinforcing fibers are a mixture of banana fibers and brucite fibers according to a mass ratio of 2:1, the mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1, and the additives are a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, mineral powder, titanium pigment and additive, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 50 ℃, the pre-curing time is 10 hours, the temperature of the steam curing is 200 ℃, the steam curing pressure is 3MPa, and the steam curing time is 12 hours.
Comparative example 1
The calcium silicate decorative plate is prepared from the following raw materials of, by weight, 25 parts of quartz sand, 60 parts of cement, 8 parts of banana fiber, 9 parts of mineral powder, 4 parts of iron oxide yellow, 8 parts of an additive and 200 parts of water, wherein the mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1, and the additive is a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding banana fiber, mineral powder, iron oxide yellow and additive, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 45 ℃, the pre-curing time is 8 hours, the temperature of the steam curing is 180 ℃, the steam curing pressure is 2MPa, and the steam curing time is 14 hours.
Comparative example 2
The calcium silicate decorative plate is prepared from the following raw materials, by weight, 25 parts of quartz sand, 60 parts of cement, 8 parts of brucite fibers, 9 parts of mineral powder, 4 parts of iron oxide yellow, 8 parts of additives and 200 parts of water, wherein the mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1, and the additives are a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding brucite fiber, mineral powder, iron oxide yellow and additives, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 45 ℃, the pre-curing time is 8 hours, the temperature of the steam curing is 180 ℃, the steam curing pressure is 2MPa, and the steam curing time is 14 hours.
Comparative example 3
The calcium silicate decorative plate is prepared from the following raw materials, by weight, 25 parts of quartz sand, 60 parts of cement, 8 parts of reinforcing fibers, 9 parts of serpentine powder, 4 parts of iron oxide yellow, 8 parts of additives and 200 parts of water, wherein the reinforcing fibers are a mixture of banana fibers and brucite fibers according to a mass ratio of 2:1, and the additives are a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, serpentine powder, iron oxide yellow and additive, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 45 ℃, the pre-curing time is 8 hours, the temperature of the steam curing is 180 ℃, the steam curing pressure is 2MPa, and the steam curing time is 14 hours.
Comparative example 4
The calcium silicate decorative plate is prepared from the following raw materials, by weight, 25 parts of quartz sand, 60 parts of cement, 8 parts of reinforcing fibers, 9 parts of kyanite powder, 4 parts of iron oxide yellow, 8 parts of additives and 200 parts of water, wherein the reinforcing fibers are a mixture of banana fibers and brucite fibers according to a mass ratio of 2:1, and the additives are a mixture of lithium carbonate and sepiolite powder according to a mass ratio of 3:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, kyanite powder, iron oxide yellow and additive, stirring uniformly, and obtaining slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 45 ℃, the pre-curing time is 8 hours, the temperature of the steam curing is 180 ℃, the steam curing pressure is 2MPa, and the steam curing time is 14 hours.
Comparative example 5
The calcium silicate decorative plate is prepared from the following raw materials of, by weight, 25 parts of quartz sand, 60 parts of cement, 8 parts of reinforcing fibers, 9 parts of mineral powder, 4 parts of iron oxide yellow, 8 parts of lithium carbonate and 200 parts of water, wherein the reinforcing fibers are a mixture of banana fibers and brucite fibers according to a mass ratio of 2:1, and the mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, mineral powder, iron oxide yellow and lithium carbonate, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 45 ℃, the pre-curing time is 8 hours, the temperature of the steam curing is 180 ℃, the steam curing pressure is 2MPa, and the steam curing time is 14 hours.
Comparative example 6
The calcium silicate decorative plate is prepared from the following raw materials, by weight, 25 parts of quartz sand, 60 parts of cement, 8 parts of reinforcing fibers, 9 parts of mineral powder, 4 parts of iron oxide yellow, 8 parts of sepiolite powder and 200 parts of water, wherein the reinforcing fibers are a mixture of banana fibers and brucite fibers according to a mass ratio of 2:1, and the mineral powder is a mixture of serpentine powder and kyanite powder according to a mass ratio of 1:1.
The preparation method of the calcium silicate decorative plate comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, mineral powder, iron oxide yellow and sepiolite powder, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product. The temperature of the pre-curing is 45 ℃, the pre-curing time is 8 hours, the temperature of the steam curing is 180 ℃, the steam curing pressure is 2MPa, and the steam curing time is 14 hours.
Experimental example:
The calcium silicate sheets obtained in examples 1 to 3 and comparative examples 1 to 4 were subjected to performance parameter tests, the results of which are shown in tables 1 to 2, with reference to the regulation of JC/T564-2000 fiber reinforced calcium silicate sheet.
TABLE 1
Note that representative is P <0.05 compared to example 1.
TABLE 2
Note that representative is P <0.05 compared to example 1.
TABLE 3 Table 3
Note that representative is P <0.05 compared to example 1.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. The calcium silicate decorative plate is characterized by being prepared from the following raw materials, by weight, 20-30 parts of siliceous materials, 40-80 parts of calcareous materials, 5-10 parts of reinforcing fibers, 6-12 parts of mineral powder, 3-5 parts of pigments, 3-10 parts of additives and 100-300 parts of water.
2. The calcium silicate decorative sheet according to claim 1, wherein the siliceous material is one or a combination of several of quartz sand, fly ash, diatomaceous earth, zeolite, kaolin, spherical silica powder.
3. The calcium silicate decorative sheet according to claim 1, wherein the calcareous material is one or a combination of several of lime, cement, sericite powder and carbide mud.
4. The calcium silicate decorative sheet according to claim 1, wherein the reinforcing fiber is a mixture of banana fiber and brucite fiber mixed according to a mass ratio of 2:1.
5. The calcium silicate decorating panel according to claim 1, wherein the mineral powder is a mixture of serpentine powder and kyanite powder in a mass ratio of 1:1.
6. The calcium silicate decorative sheet according to claim 1, wherein the additive is a mixture of lithium carbonate and sepiolite powder mixed in a mass ratio of 3:1.
7. The calcium silicate decorative sheet according to claim 1, wherein the pigment is one or more of iron oxide yellow, iron oxide red, iron oxide black, titanium white, phthalocyanine blue, ultramarine blue, lithopone, and carbon black.
8. The method for preparing the calcium silicate decorative sheet according to claim 1, wherein the method comprises the following steps:
(1) Mixing siliceous material and calcareous material with water, stirring uniformly, adding reinforcing fiber, mineral powder, pigment and additive, and stirring uniformly to obtain slab slurry;
(2) Feeding the slab slurry prepared in the step (1) into a vacuum headbox, uniformly feeding under the condition of stirring, dehydrating and cutting into slabs with required sizes;
(3) And (3) pre-curing the plate blank prepared in the step (2), demolding, feeding the plate blank into an autoclave for high-temperature and high-pressure steam curing, cooling to room temperature after steam curing, and polishing to prepare the product.
9. The method for producing a calcium silicate decorative sheet according to claim 1, wherein the temperature of the precuring is 35 to 55 ℃ and the precuring time is 6 to 12 hours.
10. The method for producing a calcium silicate decorative sheet according to claim 1, wherein the steam curing is carried out at a temperature of 120 to 220 ℃, a steam curing pressure of 1 to 3MPa, and a steam curing time of 12 to 16 hours.
CN202510676398.9A 2025-05-24 2025-05-24 Calcium silicate decorative board and preparation method thereof Pending CN120717736A (en)

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